Tool.



W. R. BROWN.

TOOL.

APPLxcATloN FILED MAYzo. 191e.

1,226,636. Patented May 22,1917.

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`WALLACE', n. BROWN, on oLEAN, NEW YORK. y

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l Specification of Letters Patent.

Patented May 2,2, 1917.

Application led May 20, 1916. Serial No. 98,751.

To all 'whom imag concern: i

Be it known tbatLNl/'ALLAGE R. BROWN, a citizen of the United States,and a lresident of Olean,l in theeountyof Ga'ttaraugus and State ofl NewWYOrk, havefin'vented a new and ImprovedwTool, of. which the' fol'-lowing is a full,clear, and eXactdescrip tion.

Among thezprincipal objects which the present invention has `in view areto provide a pocket knife, the handle ofwhich is adapted for use asa-blade-holder, and to provide a series of blades adapted for temporarymounting in said handle; to guide the blades when being applied to saidhandle; to provide means for holding a *blade in said handle; and toprovide means for v readily` disengaging a blade from said handle.

Dra/wings.

Figure 1 is a side elevation of a tool constructed and arranged forservice in accordance with the present invention;

Fig. 2 is a similar view, the side plate of the handle being removed,the view being taken as on the line 2-2 in Fig. 4, and showing adetachable blade disposed as in service:

Fig. 3 isa similar view showing the blade as partially withdrawn fromits service position;

Fig. 4 is a cross section on an enlarged scale, the section being 'takenas on the line 4-4 in Fig. 2;

Fig. 5 is a detail view showing an alternative blade supportable fromthe handle.

Description.

As shown in the drawings, the holder for tool blades, such as thescrew-driver 10 and file 11, is the handle of the knife blade 12, whichis permanently incorporated with the said handle to form a folding orpocket-knife. The blade 12 is pivotally mounted between the reinforcedends 13 of the handle plates 14. The pivot 15, which holds the blade 12,is' headed on the Vouter side of the reinforcing ends 13, as is usual inthe construction of knives of the general character here indicated.

At the opposite end of the handle, a spacing pin 16 is provided. The pin24 serves normally as a rest for the free end 17 of a locking spring 18.The spring 18 is held between the handle plates by an anchor pin 19. Theextremity of the end 17 projects `beyond the pin 16 to form a guide restfor thewedge shank 20 with which each of the blades, such. as 10 and 11,is provided.

i When the separable blades, suchas 10 and 11, `are removedfrom thehandle, the knife blade 12 may be disposed in closed or open position,as desired, and is so held by the end 21 of the spring 18 in thev usualmanner. A like oflice is performed for the bladeslO and 11, by the end17 of the spring 18, which holds the shank 20 in firm contact with thepin 16, and holds the nick 22 with which the extension 20 is provided,in engagement with said pin.

Zhen 'the nick 22 is thus engaged by the pin `16, an abutment 23 withwhich each of the blades is provided, rests rmly against the extremityof the end 17, as best shown in Fig. 2 of thedrawings. The back edge 25of the shank 20, when the blades are held in service in the handle,rests firmly on the inner surface of -the end 17, which corrects anytendency of the blade to rook on the pin 16.

The shank 2O has an offset 26 extending from the edge of the bladeopposite to that in which is formed the abutment 23. The offset 26, asshownbestin Fig. 2 of ythe drawings, rests in service between the rein'-forced ends 13 to assist in resisting the torsionalstrain on thescrew-driver 10 and le 11, or other tool blade, when used.

Operation.

When provided with aconstruction such as described and as shown in theaccompanying drawings, any one of the tool blades having a shank 20provided `with, a nick 22 and an abutment 23, is inserted in the handlehaving the plates 14, by. resting the extremity of the shank 20 on theextremity of the end 17 where the'same protrudes beyond the pin 16. Theextremity of the shank 20 is then inserted between the pin 16 and end17, so that the blade on being pressed into the handle, forces the end17 of the spring 18 backward untilthe nick 22 registers with the pin 16.The action of the spring then forces the nick to engage the pin to lockthe blade in the-handle. It will be found that at the moment ofengagement by the nick 22 of the pin 16, the eX- tremity of the end 17engages the abutment 23. The blade is thereafter held in the handleagainst accidental rocking.

Y Copies of this patentimay ney obtatnefor If it is desired to removethe blade from its service position, as shown in Figs,y 1 and 2, theblade is forced in the direction indicated by the arrow in Fig. 2 whilethe handle is held immovable. The pressure thus `applied forces the end17' backward, the

of the bladeis depressed in the manner indicated. Thus byforcingthevblade backward in the direction shown by the arrow in Fig.`2,no furtheriaction is required to'free -theblade from engagement with'lthe pinzl and the handle of whichl the said pin forms a structural part.f

01am; Y A tool comprising, a handlev having` paral- Y lel sides spacedapart for-forming a blade;

holding recess; `an engaging member disposedin said-recess adjacent theiforward end thereof; a removable bladeV having a wedge-shaped shank,said shank having n:formed at one edge` thereof'a holding nick i forengaging said member, the other edge of said shankifbeiI-ig providedwith an abutment for rocking said blade out of engagement with saidmember; and means mount- ,edinfsai'd handle for holding said shank inengagement: withV said member, saidv means embodying a spring adapted toengage the finclinededge of said shank'and to'yield to permit theintroduction ofy said shank be- Atween said member and said springandthe withdrawal of said shank from engagement with saida member, saidspringengaging said abutment to form a Vmovableralorum whereyonsaid-blade may 'rock for removing said Y mick: from :said member.

j WALLACE An. BRowN-Q ve-` cents vetmhfzby addressing-the Commissioner:of `Patents. WashingtonfILsCP y Y

